Ink-dividing band for rollers.



C. H. DAVIDS.

INK DIVIDING BAND FOB. ROLLERS.

APPLIOATION FILED 213.24, 1908.

1,086,142, y kPatented Feb. 3, 1914.

LlGENSED BY anooxLYgmswv/OHK l Banouma MEM man 3 3 meenam ax was www eos nas nvme COLUMBIA PLANDGRAPH CD..WASHINGTON. n4 C.

UNTTED STATES PATENT OFFICE.

CHARLES H. DAVIDS, OF BROOKLYN, NEW YORK, ASSIGNOR T0 N-lV[C-R COMPANY, A

` CORPORATION OF NEW YORK.

INK-DIVIDING BAND `FOR ROLLERS.

Specification of Letters Patent.

Application filed February 24, v19.08. Serial No. 417,479.

T 0 all 'whom t maw concern:

Be it known Vthat I, CHARLES H. DAviDs, a citizen ofthe United States, and a resident of Brooklyn, in .the county of Kings and State of vNew York, have invented certain new and useful :Improvements in Ink- Dividing Bands for Rollers, of which the following is a specification.

In a general way, vthis invention relates to improvements upon that set forth and described in Letters Patent No. 793,934, granted to Frederick Hunter, of Brooklyn, New York, on the 4th' day of July, 1905, for constrictors for inking-rollers; and my invention comprises such improvements as were found necessary to the practical and satisfactory operation of the so-called constrictors of said Hunter.

Said improvements comprise ridingridges which are both compressible and extensible, and which will neither cut nor abrade contacting surfaces nor crack norl break lbecause of change of curvature; which, also, can be readily and securely fastened to a .metallic or other band though the latter be, as is required, sufficiently rigid transversely to enable them to properly withstand a radially outward pressure of the material of which is made the rollers upon which said bands-are mounted; also said bands, so improved that they will conform readily to varying curvatures; also, such preparation of the inner surfaces of said bands. as would prevent them from slipping, either endwise or circumferentially of the rollers on which they were properly fastened; also, improved means for binding said bands upon inking-rollers; all of said improvements being hereinafter fully set forth and described.

In the drawing, Figure l', is a view of the inside, and Fig. 2, is a view of the outside of a attened band which is complete except that it has no binder; Fig. 3, is the same as Fig. 2, except that a binder is shown partly attached to the band; F ig. 4, is a side elevation of a complete band; Fig. 5, is a front elevation of a complete band; also showing a part of a roller, bro-ken away, projecting from either side of said complete band, and Fig. 6, is a transverse section of a roller and of a complete band applied thereto. Fig. 7 is a modified form of the binder on a reduced scale.

Theterm complete band used herein is intended to .apply onlyxto an ink-dividing Aband assembled in all its parts ,and ready for use.

. Reference YcharactersV are Valike. .throughout the drawing. y Ordinarily, my complete .improved inkdividing b-and comprises a two-ended band l, preferably made of thin and comparatively flexible materialg. the latter being, preferably, metal, and said `metal being, preferably, aluminum, Abecause of the incorrodibility thereof. Howbeit; whatsoever material .be used therefor, lthe band l, should be of sufficient flexibility to permit it, without cracking or breaking, to adapt itself to the-varying curvatures which are assumed by the different parts of the periphery of a. roller when in use; while it should also be sufficiently rigid, transversely, to withstand the radially outward pressure upon it of .thematerial of which theroller is made. 1

Riding-ridges 2, made of some material, prefer ably leather, which is both extensible and -compressible to a sufficient degree to adapt them to withstand, without cracking or breaking, lthe varying curvatures 'which are assumed, as aforesaid, 4by the different parts ofthe .periphery of the roller, as also by the .bands l andby the said riding-ridges themselves, are Nattached rin some suitable manner, .preferably,by sewedv seams, to said bands l; AThe riding-ridges are-secured to thetbands by `stitching through/the bands and riding-ridges.

A suitable binder lmay be -used for the purpose of holding a complete band closely around'aninking-roller 4, on which it is mounted. :Under ordinary conditionsy a binder comprising a bandage 6, which is preferably made of a textile fab-ric which is coated onV one side with an adhesive cement, preferably made of rubber and a suitable solvent, and coated on the other side thereof with a suitable protective element, preferably glue or isinglass, which is insolub-le in any hydrocarbon, is preferred for use for the purpose mentioned. Under other conditions, such, for instance, as widely varying temperatures, elastic binders, such, forinstance, as suitable rings 6, preferably of rubber, may be used as binders as shown by Fig. 7. Or, if preferred,

rings or bandages made of elastic webbing, and, if the former, suitably coated on both sides, may be used as binders.

This invention alsoI provides means for transversely locking the ends of a band so that they will retain their respective normal positions aXially of the roller 7 said means comprising a tongue 3, which, in the form of said locking-means shown herein, is formed on the band l by cutting away a part thereof and a part of each riding-ridge 2 at either side of said band l; said tongue 3 being suitably adapted to fit into and transversely engage a lock l1, which, in the form shown herein, is formed near the other end of the band l by cutting away an inward part of each riding-ridge 2. A circumferentially adjustable device is thus formed that serves to transversely loclr the ends 0f the band l in alinement, one with the other, and also serves as an adjusting device; that is to say, a device that permits a complete band to be so adjusted circumferentially as to fit rollers of dierent diameters.

This invention also provides a table 5, socalled, for preventing the shoulders which are formed in the band l at the root of the tongue 3 from cutting or otherwise injuring the surface of the roller 4. Said table 5, preferably, comprises a nude prolongation of the band l beyond the lock l1, and, preferably, is of suicient length to project beyond the shoulders referred to, even though the band l be used at the full limit of its adj ustment.

This invention also provides means for preventing the complete bands from slipping, in any direction, from the positions in which they are placed on the rollers. Said means comprise a specially prepared inner surface l of the band l; such special preparation consisting, preferably, of a suitable roughening of the surface 1. In the form of the latter shown herein, .the surface l thereof is roughened, so to speak, by a suitable lettering, such, for instance, as' that shown at S in the drawing; such lettering being preferably stamped so that the obverse thereof is shown in relief on the surface 1; said lettering in relief thereby providing the band l with suitable means for so engaging the roller si as to prevent the complete band from slipping or sliding on said roller.

This invention also provides improved means for securely attaching the ridingridges 2 to the bands l; said means comprising sewed seams 10. Said seams are made in the ordinary manner, preferably by means of a sewing machine; ordinary threads and needles being used for the purpose.

I claim as new and as my inventionl. .ln an ink dividing band, a band having a roughened inner surface, riding ridges of flexible material sewed to the exterior of said band and adjacent the edges thereof, an end of said band being abruptly narrowed forming a tongue,ithe other end of the band having an abruptly widened recess between said ridges for receiving said tongue.

2. In an inl; dividing band, a band of thin metal, strips of flexible and slightly resilient material stitched to the band, means for securing the ends of said band in fixed relation to each other, and means for securing said band against movement on the surface of an ink roller.

3. In an ink dividing band, a band of thin metal having a roughened inner surface, a leather riding ridge stitched through said band adjacent its edges, and a strip of textile fabric treated with an adhesive substance for securing the ends of the band in `fixed relation to each other.

witnesses.

CHAS. H. DAVIDS. Witnesses GRACE S. Davies, Jos. W. GUSTAW.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

